I think it depends on how mature you are. The main things in this game are suicide, gore, self harm, depression, etc. If you think you can handle it, then you can maybe try the game. Reminder: If you genuinely get frightened, don't feel pressured to keep playing.
Not everyone who downloads the game is here for the girls. As the "This game is not suitable for children or those who are easily disturbed" implies, the game is not all cute. There is a good amount of psychological horror.
